Fluid pulsation modes and tidal deformability of anisotropic strange stars in light of the GW$170817$ event

Abstract

The effects of the anisotropy on the fluid pulsation modes adopting the so-called Cowling approximation and tidal deformability of strange quark stars are investigated by using the numerical integration of the hydrostatic equilibrium, nonradial oscillations, and tidal deformability equations, being these equations modified from their standard form to include the anisotropic effects. The fluid matter inside the compact stars is described by the MIT bag model equation of state. For the anisotropy profile, we consider a local anisotropy that is both regular at the center and null at the star's surface. We find that the effect of the anisotropy is reflected in the fluid pulsation modes and tidal deformability. Finally, we analyze the correlation between the tidal deformability of the GW$170817$ event with the anisotropy.

To appear in PRD

References in corpus (23)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• Tidal Love numbers of neutron stars
• GW170608: Observation of a 19-solar-mass Binary Black Hole Coalescence
• Constraining neutron star tidal Love numbers with gravitational wave detectors
• Relativistic theory of tidal Love numbers
• Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network
• Neutron Star Asteroseismology. Axial Crust Oscillations in the Cowling Approximation
• Non-radial oscillations of anisotropic neutron stars in the Cowling approximation
• Radial pulsations and stability of anisotropic stars with quasi-local equation of state
• Signatures of hadron-quark mixed phase in gravitational waves
• The tidal deformability of an anisotropic compact star: Implications of GW170817
• Non-radial Oscillation Modes of Compact Stars with a Crust
• $I-$Love$-C$ relation for an anisotropic neutron star
• Tidal deformability of strange stars and the GW170817 event
• Magnetic fields in anisotropic relativistic stars
• Nonradial oscillations of slowly and differentially rotating compact stars
• Non-radial oscillations of the rapidly rotating Be star HD 163868
• Tidal deformability and radial oscillations of anisotropic polytropic spheres
• Non-radial oscillations and global stellar properties of anisotropic compact stars using realistic equations of state
• Dark matter imprint on ${}^8$B neutrino spectrum
• Fluid pulsation modes from strange stars in a higher-dimensional space-time

Cited by in corpus (10)

• Effects of anisotropic pressure on interacting quark star structure
• Moment of inertia and compactness of quark stars within the context of $f(R,T,L_m)$ gravity
• Universal relations for anisotropic interacting quark stars
• Cold quark matter in a quasiparticle model: thermodynamic consistency and stellar properties
• Non-radial oscillations of hadronic neutron stars, quark stars, and hybrid stars : Calculation of $f$, $p$, and $g$ mode frequencies
• Vetting quark-star models with gravitational waves in the hierarchical Bayesian framework
• Exploring Temperature Influences on Gravitational Wave Production in Binary White Dwarfs
• Gravitational-Wave Constraints on Neutron-Star Pressure Anisotropy via Universal Relations
• Anisotropic pressure effect on central EOS of PSR J0740+6620 in the light of dimensionless TOV equation
• Gravitational wave seismology of charged strange stars in the Cowling approximation: the fluid pulsation modes